n is a number
"the sum of <span>a number and twelve" is (n+12)
"</span><span>Six times the sum of a number " is 6(n+12)
6(n+12)=40
6n+72=40
6n=40-72
6n= - 32
n=-32/6 = -16/3 or -5 1/3</span>
Answer:
percent change = 25% (drop)
Step-by-step explanation:
James reasoning is incorrect
Let the original price of the computer = $1000
If the computer was marked up by 50% then 1000 x 1.5 = $1500
If the computer was then marked down by 50% then 1500 x 0.5 = $750
Percent change = [ (difference between final value and initial value) ÷ initial value] x 100
= [ (1000 - 750) ÷ 1000 ] x 100
= 25% (drop)
X/5 + 7 = 14
Subtract 7 from each side:
X/5 = 7
Multiply both sides by 5:
x = 7 * 5
X = 35
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